166182893 has 2 divisors, whose sum is σ = 166182894. Its totient is φ = 166182892.

The previous prime is 166182883. The next prime is 166182923. The reversal of 166182893 is 398281661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120187369 + 45995524 = 10963^2 + 6782^2 .

It is a cyclic number.

It is not a de Polignac number, because 166182893 - 2²⁰ = 165134317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166182883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83091446 + 83091447.

It is an arithmetic number, because the mean of its divisors is an integer number (83091447).

Almost surely, 2^166182893 is an apocalyptic number.

It is an amenable number.

166182893 is a deficient number, since it is larger than the sum of its proper divisors (1).

166182893 is an equidigital number, since it uses as much as digits as its factorization.

166182893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 44.

The square root of 166182893 is about 12891.1943977275. The cubic root of 166182893 is about 549.7882303173.

The spelling of 166182893 in words is "one hundred sixty-six million, one hundred eighty-two thousand, eight hundred ninety-three".